export default {
    // hex颜色转rgb颜色
    HexToRgb(str) {
        str = str.replace("#", "")
        var hxs = str.match(/../g)
        for (var i = 0; i < 3; i++) hxs[i] = parseInt(hxs[i], 16)
        return hxs
    },
    // rgb颜色转hex颜色
    RgbToHex(a, b, c) {
        var hexs = [a.toString(16), b.toString(16), c.toString(16)]
        for (var i = 0; i < 3; i++) {
            if (hexs[i].length === 1) hexs[i] = "0" + hexs[i]
        }
        return "#" + hexs.join("")
    },
    // 加深
    darken(color, level) {
        var rgbc = this.HexToRgb(color)
        for (var i = 0; i < 3; i++) rgbc[i] = Math.floor(rgbc[i] * (1 - level))
        return this.RgbToHex(rgbc[0], rgbc[1], rgbc[2])
    },
    // 变淡
    lighten(color, level) {
        var rgbc = this.HexToRgb(color)
        for (var i = 0; i < 3; i++) rgbc[i] = Math.floor((255 - rgbc[i]) * level + rgbc[i])
        return this.RgbToHex(rgbc[0], rgbc[1], rgbc[2])
    }
}
